Product Overview
The Parker R4V06-53330A525 (OEM reference 016-87819-5) is a pilot operated pressure relief valve engineered for precise system pressure regulation and overload protection in industrial hydraulic circuits. As a member of the Parker R4V series, this valve utilizes a two-stage pilot and main poppet/spool architecture that delivers accurate cracking pressure, minimal pressure override, and stable operation across the full flow range. The R4V06 size 06 (NG06 / CETOP 3) subplate-mounted body integrates directly into standard manifold and sandwich plate systems, making it a direct-fit solution for both new machine builds and OEM replacement applications. Its primary function is to limit maximum system pressure by diverting excess flow to tank once the adjustable set point is reached, safeguarding pumps, cylinders, motors, and downstream components from pressure spikes and cavitation damage.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | R4V06-53330A525 / 016-87819-5 |
| Manufacturer | Parker Hannifin |
| Size / Mounting Pattern | NG06 / CETOP 3 / ISO 4401-03 Subplate Mounted |
| Operating Pressure | Up to 350 bar (5,000 psi) rated working pressure |
| Pressure Adjustment | Adjustable via protected hex set screw with locknut |
| Actuation Principle | Two-stage pilot operated with balanced main spool |
| Mounting & Connection | Standard ISO 4401 / CETOP 3 interface, manifold or subplate ported |
| Seal Material | NBR (Buna-N) standard, compatible with mineral-based hydraulic fluids |
Engineering Features & Advantages
- Precision Pressure Control: The two-stage pilot operated design provides accurate and repeatable pressure setting with low hysteresis and minimal pressure override, ensuring consistent system protection even under rapid flow fluctuations.
- Stable Low-Noise Operation: Balanced spool geometry and dampened pilot stage minimize chatter and vibration, delivering smooth relief action and reduced audible noise in continuous-duty circuits.
- Industrial Reliability: Hardened internal spool and seat components are built for continuous operation under severe industrial conditions, resisting contamination-induced wear and extending service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Parker R4V06 and OEM 016-87819-5 specifications, allowing drop-in replacement without manifold modification.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original PARKER standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The R4V06 size 06 (NG06 / CETOP 3) subplate-mounted body integrates directly into standard manifold and sandwich plate systems, making it a direct-fit solution for both new machine builds and OEM replacement applications.
PRODUCT IMAGES
PARKER R4V06-53330A525 / 016-87819-5 Pilot Operated Pressure Relief Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine PARKER R4V06-53330A525 / 016-87819-5 Pilot Operated Pressure Relief Valve. This Germany-made hydraulic component features a precise pressure control design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
